diff --git a/.gitignore b/.gitignore
index f381f0ab..a6f1472a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,6 +12,7 @@ update_function.sh
 tmp_tests
 tests/**/database.yaml
 tests/**/__pycache__
+.coverage
 
 # editor
 .idea
diff --git a/exec_test.py b/exec_test.py
index e4142cbc..10980967 100644
--- a/exec_test.py
+++ b/exec_test.py
@@ -15,7 +15,7 @@ def exec_test(target_dir):
     print(target_dir)
     exit_status = 0
     try:
-        subprocess.check_call(['green', '-vv', '--processes', '1', target_dir])
+        subprocess.check_call(['green', '-vv', '--processes', '1', '--run-coverage', target_dir])
     except subprocess.CalledProcessError:
         exit_status = 1